I know people want to export to WAV, send it to get mastered and/or tweak it in their own editor... but honestly, if you're working on a track with someone and want to work quickly and bounce ideas back and forth, it'd be great to just export to MP3 right off the bat and skip a couple steps and email the mp3 instead of making me open another program and waste another X minutes every time.

i AGREE. some sites like reverbnation accept mp3 only files. this is needed badly for any diy musician who doesnt want to open another program to convert the wav file to an mp3. would love for my do it all daw to do it all

I have no idea what valid argument could exist against having as many export options as possible. AIFF, WAV, Broadcast WAV, FLAC, ALAC, Ogg Vorbis, AAC, MP3, Soundcloud, etc... A professional needs many options today for many different services.

Ultimately I would love the ability to render to as many formats as possible and to place each file in a different specified location all in one swoop.

This is absolutely mandatory! There is no reason not to have it this day and age. Upload times are long, and you can't email a WAV. Yes, lossless files are great for the final mixdown, but come on, it's not practical to be only limited to that format. If you are trying to collaborate/exchange ideas quickly, it severely hinders workflow and becomes extremely annoying. There is truly no excuse not to have it considering pretty much every other major DAW can do it. These are just the basics that any music production software should be equipped with.

Yea seriously! I upload to soundcloud a lot to share files privately back and forth with my band. When uploading waves, it takes forever!! There is a time and place for good quality, high bitrate audio when it comes to publishing a finished product or sending tracks to be mastered.
But for scratch tracks, come on!!! IT is a pain in the butt to go the extra step to convert to an mp3 after the export.
Allowing mp3 exports would allow for a quicker mixdown, faster upload, faster download on the other end, and taking up less storage space on my computer, iPod, or phone!